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<pre>
      SUBROUTINE <a name="XERBLA.1"></a><a href="xerbla.f.html#XERBLA.1">XERBLA</a>(SRNAME,INFO)
<span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  -- LAPACK auxiliary routine (preliminary version) --
</span><span class="comment">*</span><span class="comment">     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
</span><span class="comment">*</span><span class="comment">     November 2006
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">     .. Scalar Arguments ..
</span>      INTEGER INFO
      CHARACTER*6 SRNAME
<span class="comment">*</span><span class="comment">     ..
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  Purpose
</span><span class="comment">*</span><span class="comment">  =======
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  <a name="XERBLA.15"></a><a href="xerbla.f.html#XERBLA.1">XERBLA</a>  is an error handler for the LAPACK routines.
</span><span class="comment">*</span><span class="comment">  It is called by an LAPACK routine if an input parameter has an
</span><span class="comment">*</span><span class="comment">  invalid value.  A message is printed and execution stops.
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  Installers may consider modifying the STOP statement in order to
</span><span class="comment">*</span><span class="comment">  call system-specific exception-handling facilities.
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  Arguments
</span><span class="comment">*</span><span class="comment">  =========
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  SRNAME  (input) CHARACTER*6
</span><span class="comment">*</span><span class="comment">          The name of the routine which called <a name="XERBLA.26"></a><a href="xerbla.f.html#XERBLA.1">XERBLA</a>.
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  INFO    (input) INTEGER
</span><span class="comment">*</span><span class="comment">          The position of the invalid parameter in the parameter list
</span><span class="comment">*</span><span class="comment">          of the calling routine.
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">
</span>      WRITE (*,FMT=9999) SRNAME,INFO
<span class="comment">*</span><span class="comment">
</span>      STOP
<span class="comment">*</span><span class="comment">
</span> 9999 FORMAT (<span class="string">' ** On entry to '</span>,A6,<span class="string">' parameter number '</span>,I2,<span class="string">' had '</span>,
     +       <span class="string">'an illegal value'</span>)
<span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">     End of <a name="XERBLA.40"></a><a href="xerbla.f.html#XERBLA.1">XERBLA</a>
</span><span class="comment">*</span><span class="comment">
</span>      END

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